style: Require trailing comma, and break lines

Requiring trailing commas on multi-line lists of items (declarations
and call sites) reduces future repository churn when those lines are
changed, but introduces additional churn now.

Bite the bullet and make the change, as well as adjusting lines that
were too long / indented incorrectly.

The changes were performed automatically, using the `ktlintFormat` task.

Based on tuskyapp/Tusky#3968 by
https://github.com/tinsukE

.editorconfig

@@ -8,10 +8,13 @@ insert_final_newline = true
 trim_trailing_whitespace = true
 
 # Disable wildcard imports
-[*.{java, kt}]
+[*.{java,kt}]
 ij_kotlin_name_count_to_use_star_import = 999
 ij_kotlin_name_count_to_use_star_import_for_members = 999
 ij_java_class_count_to_use_import_on_demand = 999
+# Require trailing comma
+ij_kotlin_allow_trailing_comma = true
+ij_kotlin_allow_trailing_comma_on_call_site = true
 
 [*.{yml,yaml}]
 indent_size = 2